Ealing Police has said there will be increased patrols in the area to reassure the community in the aftermath of the knife attack in broad daylight on Tuesday (April 11).
The 19-year-old victim who died in hospital hours after the stabbing in Newnham Close was named locally as Abdullahi Tarabi.
Officers from North Greenford Safer Neighbourhoods Team will be out patrolling the streets over the four-day holiday.
On Saturday (April 15) the team will hold a street briefing in Oldfield Circus, between 9am and 11am, which residents are welcome to attend to discuss any concerns.
PS Sergeant Twitchen of North Greenford SNT said: "We recognise that the local community will have some concerns around public safety since the fatal stabbing of a 19 year old in Newnham Close on Tuesday afternoon.
"My officers will be out patrolling to reassure the public and disrupt any criminal activity."
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A murder investigation has been launched and detectives continue to appeal for information and witnesses.
Police were called by the ambulance service at 3.20pm on Tuesday and found a man with stab injuries.
He was taken to hospital where he was pronounced dead at 5.35pm.
Next-of-kin have been informed.
Formal identification awaits and a post-mortem examination will be held in due course.
Detectives from the Homicide and Major Crime Command, led by Detective Chief Inspector Andy Partridge are investigating.
DCI Partridge added: “This deplorable attack took place in broad daylight in a residential location.
“I would like to hear from anyone who saw the attack itself or witnessed anything else that may be important.
“It is believed that A suspect has made his escape from the scene and headed in the direction of Petts Hill’.
Four teenagers, three aged 19, and one aged 18, have been arrested on suspicion of murder
All four remain in custody at separate London police stations.
Anyone who witnessed the incident or has information about the attack can contact the incident room on 0208 358 0300 or via Twitter @MetCC.
To give information anonymously visit Crimestoppers online on call 0800 555 111.
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